JP5106894B2 - PROGRAM, INFORMATION STORAGE MEDIUM, AND GAME DEVICE - Google Patents

Description

  The present invention relates to a program, an information storage medium, and a game device.

  An object of a player character such as a fighter or a soldier that is operated by a player is formed in a three-dimensional virtual space, and a game space image viewed from a virtual camera that is controlled to move along with the player character is displayed. A game is known in which a player character is operated to attack an enemy character with a missile or a gun while being displayed as a screen.

In recent years, the control of the virtual camera is corrected so that the attack target can easily enter the shooting range of the virtual camera that shoots the three-dimensional virtual space, and the player is prevented from losing sight of the target in the game space. Is known to make it easier to enjoy (see, for example, Patent Document 1). In addition, the “predicted position of the object when the bullet arrives” is determined based on the position, moving direction, moving speed of the enemy character within the aim of the gun held by the player character, and the position of the player character and the speed of the bullet. It is also known to compensate for the skill of a beginner player by correcting the barrel direction so as to be hit (see, for example, Patent Document 2).
JP 2001-9158 A JP 2001-46743 A

  By the way, in a game called “combat flight simulation” where a player controls a fighter to make an air battle with an enemy character's fighter, a normal attack weapon is a missile that flies to track a target enemy character for a predetermined time. . However, this missile's ability to track is limited and will not always be a hit. The hit rate varies greatly depending on the relative positional relationship between the enemy character and the player character at the time of missile launch, the relationship of the nose direction of the player character with respect to the traveling direction of the enemy character, and the like. In other words, it is necessary to “fire at an appropriate timing with an appropriate relative positional relationship for shooting down with a missile”. In the combat flight simulation game, this determination is the difference between the results of the beginner player and the advanced player. For beginner players, it was a cause of dissatisfaction if they did not hit it.

  It is also conceivable to apply the technique of Patent Document 2 described above so that even a beginner player can enjoy the game without feeling such dissatisfaction. However, since the technique of the patent document is basically premised on a straight line like a gun bullet, it is a means of attacking a flying object that automatically tracks an attack target like a missile in a combat flight simulation game. It was not always appropriate in the game.

  The present invention has been made in view of these circumstances, and the object of the present invention is to improve the accuracy of the attack even if the player uses a flying object that automatically tracks the attack target as an attack means. It is to be able to be enhanced so that even beginner players can enjoy the feeling of aiming at the enemy.

  A first invention for solving the above problems is a program for causing a computer to execute a predetermined game by performing movement control of a character in a virtual space and generating an image of the game space based on a given virtual camera. The movement control of the player character capable of launching a flying object (for example, missile 2 in FIG. 3) that tracks and flies following the tracking target character (for example, the enemy character 6 in FIG. 3) based on the operation input of the player. Player character movement control means (for example, operation input unit 100, processing unit 200, game calculation unit 210, steps S8 to S10 in FIG. 12), tracking target character movement control for performing movement control of the tracking target character Means (for example, the processing unit 200, the game calculation unit 210 in FIG. 9, step S6 in FIG. 12), the current player character Tracking control method selection means for selecting a tracking control method from a plurality of tracking control methods based on at least the relative position and orientation of the tracking target character and the tracking target character (for example, the processing unit 200, the game calculation unit in FIG. 9) 210, steps S16 to S18 in FIG. 12, steps S104 to S108 in FIG. 14, and detection means for detecting the player's firing operation input (for example, the processing unit 200 in FIG. 9, the game calculation unit 210, and step S18 in FIG. Step S100 in FIG. 14), a flight control unit that launches the flying object in response to the detection, and controls the flight of the flying object by the tracking control method selected by the tracking control method selection unit at the time of the detection. For example, as processing unit 200 in FIG. 9, game calculation unit 210, step S18 in FIG. 12, and steps S114 to S130 in FIG. Is a program for the functioning of the serial computer.

  A tenth aspect of the present invention is a game device for executing a predetermined game by performing movement control in a virtual space of a character and generating an image of the game space based on a given virtual camera, based on an operation input of a player, Player character movement control means for controlling movement of a player character capable of launching a flying object that tracks and follows the tracking target character, tracking target character movement control means for controlling movement of the tracking target character, and the current player A tracking control method selecting means for selecting a tracking control method from a plurality of tracking control methods based on at least a relative position and orientation between the character and the tracking target character; and a detecting means for detecting a player's firing operation input The flying object is fired in response to the detection, and is selected by the tracking control method selection means at the time of the detection. A flight control unit for controlling the flight of the projectile by been tracking control method is a game device provided with.

  According to the first or tenth invention, when a flying object is fired, a plurality of tracking control methods are based on at least the relative positions and orientations of the current player character and the tracking target character. The tracking control method can be selected from The accuracy of the flying object can vary depending on how it is controlled to move toward the tracking target. Therefore, even if a novice player plays a game in which a flying object that automatically tracks an attack target is used as an attack means, it is possible to improve the accuracy of the attack.

  A second invention is a program according to the first invention, wherein the plurality of tracking control methods include at least a future position prediction type tracking control method, and the flight control means includes the tracking control method selection means. When the future position prediction type tracking control method is selected, a process of predicting and calculating the future position of the tracking target character after a predetermined time and moving the flying object using the future position as the moving target position of the flying object. It is a program for causing the computer to function repeatedly to control the flying of the flying object.

  According to the second invention, the same effects as in the first invention can be obtained, and the flying object can be controlled to move toward the future position of the tracking target character, so that the tracking target character can be attacked with high accuracy.

  A third invention is the program according to the second invention, wherein the tracking control method selection means determines a future reference position (for example, FIG. 6) which is a future position after a predetermined reference time of the tracking target character. Determination reference future position prediction calculation means for predicting and calculating the future predicted position 12) (for example, the processing unit 200 in FIG. 9, the game calculation unit 210, steps S50 to S54 in FIG. 13), and the prediction calculation calculated reference reference future position. Is a direction matching detection means (for example, the processing unit 200, the game calculation unit in FIG. 9) that detects that the player character is in a position that satisfies a predetermined proximity condition with respect to the direction of the player character or the extension direction of the flying direction of the flying object. 210, and steps S60 to S64) of FIG. 13, and the future position prediction type tracking control method is selected when the detection by the direction matching detection means is performed. Is a program for causing the computer to function.

  The third invention has the same effect as the second invention, and has a future position on the condition that it is in a position that satisfies a predetermined proximity condition with respect to the direction of the player character or the extension direction of the flying direction of the flying object. A predictive tracking control method can be selected. Paradoxically speaking, when the player actively operates the player character so as to satisfy the predetermined proximity condition, the flying object to which the future position prediction type tracking control method is applied can be attacked for the first time. Therefore, not only unconditionally assisting the player but also requesting an appropriate operation has an effect of promoting improvement of the player's operation skill.

  A fourth invention is the program of the third invention, wherein the determination reference future position prediction calculating means varies the predetermined determination reference time according to a distance between the player character and the tracking target character. A program for causing the computer to function.

  According to the fourth invention, the same effect as the third invention is achieved, and the accuracy of the flying object to which the future position predictive tracking control method is applied depends on the distance between the player character and the tracking target character. Can be variable.

  5th invention is the program of 3rd or 4th invention, Comprising: When the said prediction reference future position calculated is located outside the imaging range of the said virtual camera, or correct | amends within the imaging range, or And a program for causing the computer to function so as to correct the center position when it is located at the peripheral edge of the photographing range.

  According to the fifth invention, the same effects as the third or fourth invention can be obtained, and the opportunity to apply the future position prediction type tracking control method can be increased, so that the assistance of the novice player can be implemented more effectively. .

  A sixth invention is a program according to any one of the third to fifth inventions, and a predetermined notification method (for example, indicating that the detection has been made when the direction adaptation detection means is used) In order to cause the computer to function as a notification control means (for example, the processing unit 200, the game calculation unit 210, the image generation unit 260, and steps S26 to S30 in FIG. 12) that notifies with the shoot timing display 10) in FIG. It is a program.

  According to the sixth invention, the player has the same effect as any of the third to fifth inventions, and notifies the player of the timing at which the flying object to which the future position predictive tracking control method can be applied can be used. Can assist.

  A seventh invention is the program according to any one of the third to sixth inventions, wherein a range that satisfies the predetermined proximity condition (for example, the reticle 8 in FIG. 5) centered on the determination reference future position, This is a program for causing the computer to function as determination range display control means (for example, the processing unit 200, the game calculation unit 210, and the image generation unit 260 in FIG. 9) displayed in the image of the game space.

  According to the seventh invention, the same effect as any one of the third to sixth inventions can be obtained, and a range satisfying the predetermined proximity condition centered on the determination reference future position can be displayed on the game image. The operation of the player can be assisted so that the flying object to which the future position prediction type tracking control method is applied can attack.

  An eighth invention is the program according to any one of the second to seventh inventions, wherein the plurality of tracking control methods include at least a current position reference tracking control method, and the flight control means includes the tracking When the current position reference tracking control method is selected by the control method selection means, the flight of the flying object that has repeatedly performed the process of moving the flying object with the tracking target character current position as the movement target position of the flying object is performed. A program for causing the computer to function so as to be controlled.

  According to the eighth invention, the same effect as any one of the second to seventh inventions is achieved, and the tracking applied to the control of the flying object from the future position prediction tracking control method and the current position reference tracking control method A control method can be selected to make a difference in the accuracy of the flying object.

  A ninth invention is a computer-readable information storage medium storing any one of the programs of the first to eighth inventions. The “information storage medium” mentioned here includes, for example, a magnetic disk, an optical disk, an IC memory, and the like. According to the ninth aspect, by causing the computer to read and execute any one of the programs of the first to eighth inventions, causing the computer to exert the same effect as any of the first to eighth inventions. Can do.

  According to the present invention, a tracking control method is selected from a plurality of tracking control methods based on at least the relative position and orientation of the current player character and the tracking target character when a flying object is fired. You can choose. The accuracy of the flying object can vary depending on how it is controlled to move toward the tracking target. Therefore, even if a novice player plays a game in which a flying object that automatically tracks an attack target is used as an attack means, it is possible to improve the accuracy of the attack.

Hereinafter, as an embodiment to which the present invention is applied, a case where a combat flight simulation game is executed on a consumer game device will be described as an example.
Note that the game genre to which this embodiment is applicable is not limited to the combat flight simulation game. A flying object that the player character automatically tracks the attack target (for example, a weapon that flies while rotating like a shuriken, a light bulb that expresses a collection of minds, a light that represents a laser weapon, a part of the structure of the character It can be applied to any game that attacks and fights using weapons that attack separately, including balls that fly by turning and turning.)

[Configuration of game device]
FIG. 1 is a configuration diagram illustrating a configuration example of a consumer game device according to the present embodiment. As shown in the figure, the consumer game device 1200 includes a game device main body 1201, a game controller 1230, and a video monitor 1220.

  The game apparatus main body 1201 includes, for example, a control unit 1210 on which a CPU, an image processing LSI, an IC memory, and the like are mounted, and information storage medium reading devices 1206 and 1208 such as an optical disk 1202 and a memory card 1204. Then, the home game device 1200 reads the game program and various setting data from the optical disk 1202 and the memory card 1204, and the control unit 1210 executes various game operations based on operation inputs made to the game controller 1230. Run a given video game.

  The control unit 1210 includes various microprocessors such as a CPU (Central Processing Unit), GPU (Graphics Processing Unit), and DSP (Digital Signal Processor), and electrical and electronic devices such as an ASIC (Application Specific Integrated Circuit) and an IC memory. Each part of the game apparatus 1200 is controlled. In addition, the control unit 1210 includes a communication device 1212 that is wired or wirelessly connected to the communication line 1 such as the Internet, a LAN (Local Area Network), and a WAN (Wide Area Network), and realizes data communication with an external device. Prepare.

  The game controller 1230 refers to a plurality of push buttons 1232 provided on the upper surface of the controller used for determination and cancellation of selection, timing input, and the like, and push buttons 1233R and 1233L provided on the left and right front sides. A direction input key 1234 (up direction key 1234U, down direction key 1234D, right direction key 1234R, left direction key 1234L), a right analog lever 1236R, and a left analog lever 1236L. Is provided.

  The right analog lever 1236R and the left analog lever 1236L are direction input devices capable of simultaneously inputting the two-axis directions of the vertical direction and the horizontal direction as shown in the figure. Normally, the game controller 1230 is held with the left and right hands, and each lever is operated with a thumb attached. By tilting the lever, it is possible to input an arbitrary direction including a biaxial component and an arbitrary operation amount corresponding to the tilting amount of the lever. Also, any analog lever can be used as a push switch by pushing it in the axial direction of the lever from a neutral state where no operation is input.

  In this embodiment, the push button 1232 inputs operations such as missile launch, machine gun launch, and attack target switching (selection) from the player character fighter. Also, the push button 1233R inputs an acceleration operation, the push button 1233L inputs a deceleration operation, the left analog lever 1236L inputs a vertical pitch up / down, the left / right input inputs the left / right roll and left / right yaw of the aircraft, and a steering operation. To do. Then, operation input signals corresponding to these operation inputs are transmitted to the game apparatus main body 1201.

  The control unit 1210 of the game apparatus main body 1201 generates a game image and game sound based on the detection signal and the operation input signal received from the game controller 1230, and executes the video game. The generated game image and game sound are output to a video monitor 1220 (display monitor) connected by a signal cable 1209. The video monitor 1220 is provided with a display 1222 that is an image display element for displaying an image and a speaker 1224 that emits sound, and the player emits sound from the speaker 1224 while watching the game image displayed on the display 1222. Play the game while listening to the game sound.

  FIG. 2 is a diagram illustrating an example of a game screen in the present embodiment. As shown in the figure, a game space image 30 is displayed as a main image on the game screen W2. The game space image 30 is an image of a game space viewed from or including a player character photographed by a virtual camera that is moved and controlled together with a player character operated by a player operating each home game device 1200. As information for assisting the player character in maneuvering, a so-called HUD (Head Up Display) display on the game image includes a whiskey mark 32, a posture display 34, an altitude display 36, a speed display 38, a direction display 40, a remaining bullet A number display 42 and a damage display 44 are combined and displayed.

  A radar image W3 is displayed in a predetermined area at the lower left corner of the game screen W2. The radar image W3 is a simplified overhead view centering on the player character. A radar display mark 48 representing a player character is arranged at the center, and an axis 50 indicating the front-rear direction and the left-right direction is displayed around this. Then, an enemy radar display mark (black mark in the figure) is displayed from the player character as a display body indicating an enemy character existing in a predetermined range (range wider than the above-described search enemy range and attack range) from the player character. The relative position of is maintained and reduced.

  The combat flight simulation game according to the present embodiment is similar to the conventional game in the game world formed in a three-dimensional virtual space, in which a fighter as a player character operated by a player and a plurality of enemy characters as an automatic character controlled by a computer are used. The fighters are arranged and attack each other with missiles. In the example shown in the figure, the game space screen 30 displays machine shadows 52a, 52b, and 52c of enemy characters existing in front of the player character.

  Container displays 56 and 57, which are identifiers for attracting attention to the character shadows 52a, 52b, and 52c of the enemy characters that exist within a predetermined search range from the player character and appear in the game space image 30, are attached. The The player can select any one of the enemy characters 52a, 52b, and 52c to which the container displays 56 and 57 are attached by the operation of the push button 1232 as the attack target.

  In the figure, the enemy character 52b of the center shadow is selected, and as a proof of selection, the container display 57 is highlighted more than the other container display 56, and the weapon type of the enemy character is shown in the upper right. Information 58 is additionally displayed. Normally, when a target is selected as an attack target and the enemy character exists within a predetermined attackable range for a predetermined time or longer, a so-called “lock-on” state is stored as a target of the missile attack (missile tracking target). It becomes. When the lock is on, the container display 57 is further displayed in a special color to indicate that the lock is on. When it is confirmed that the lock-on state has been established and the player operates a predetermined push button 1232, a missile as a flying object is launched from the player character. The missile tracks the locked-on enemy character.

When a missile is launched, a new missile object is placed in the three-dimensional virtual space, and movement control is performed so that the enemy character locked on each display cycle (drawing cycle) of the display 1222 tracks and flies for a predetermined time. Is done.
More specifically, for example, as shown in FIG. 3, the missile 2 is a tracking target from the current position Pmt (t = 0, 1, 2, 3,...; The position at the time of launch is the same position as the player character 4). The moving direction is corrected so as to go to the current position Pet (t = 0, 1, 2, 3,...) Of the enemy character 6 that is locked on. That is, the standard navigation control of the missile 2 can also be called a current position reference tracking control method.

  The missile 2 has an upper limit angle (steering limit angle θm) that can change the traveling direction per time (in this case, per one movement control) as in the actual case. Therefore, the missile may not hit depending on the relative positional relationship and orientation relationship between the player character 4 and the enemy character 6 at the time the missile is launched, and the subsequent movement of the enemy character 6.

  For example, in the example of the figure, in the movement control of the missile 2 at the current positions Pm1 and Pm2 that have elapsed after the launch, steering control is performed so as to face the current positions Pe1 and Pe2 of the enemy character at each time point. In the example of the figure, the required turning angles θ1 and θ2 at the current positions Pm1 and Pm2 are both less than the turning limit angle θm, and the missile 2 tracks the enemy character 6 locked on. Movement control is performed using the current position as the target movement position.

  However, at the time (t = 3) when more time has passed, the current position Pm3 of the missile 2 is approaching the current position Pe3 of the enemy character 6, but the trajectory of the enemy character 6 is the current traveling direction (line) of the missile 2. (A direction from the minute Pm2 to Pm3). In the movement control of the missile 2 at the current position Pm3, the required turning angle θ3 for directing the missile 2 toward the current position Pe3 of the enemy character 6 is obtained, but the required turning angle θ3 exceeds the turning limit angle θm. When the movement control is actually performed, only the turning limit angle θm is steered. As a result, the amount of steering becomes insufficient, and the missile 2 does not hit the enemy character 6 that has been locked on, and glares sideways. Then, after a predetermined time has elapsed after the launch, it is determined that the propellant has been used up, and after that it can no longer be propelled and will expire (it will stall and fall. Specifically, the placement in the game space will be canceled and hidden. .)

  That is, if the missile 2 is fired after being locked on, it is not always possible to shoot down the enemy character 6, but it is necessary to "fire at an appropriate timing with an appropriate relative positional relationship to shoot down with the missile". In the combat flight simulation game, this determination is the difference between the results of the beginner player and the advanced player. For beginner players, it is also a cause of dissatisfaction if they do not hit it.

  Therefore, in this embodiment, when a launch operation is input at this “relative positional relationship appropriate for shooting with a missile and appropriate timing”, the missile tracking control method is switched to another control method. Further, it has a function of assisting the missile launch operation input by notifying the player of “relative positional relationship and appropriate timing suitable for shooting down with a missile”.

4 to 5 are game screen examples in the present embodiment, and are diagrams for explaining the firing operation input auxiliary display.
As shown in FIG. 4, in this embodiment, the reticle 8 is synthesized and displayed on the game space image 30 in order to notify “relative positional relationship suitable for shooting down with a missile”. The reticle 8 indicates a range in which the nose of a player character suitable for shooting with a missile should face. Then, if the nose of the player character (the nose direction is indicated by the whiskey mark 32) falls within the range of the reticle 8, it is determined as “appropriate timing”, and as shown in FIG. A shot timing display 10 such as “SHOT (shoot)” is displayed at 30.

  FIG. 6 is a conceptual diagram for explaining a reticle display method in the present embodiment. As shown in the figure, the future predicted position 12 is set ahead by the estimated moving distance L2 in the traveling direction of the enemy character 6 selected as the attack target. The estimated movement distance L2 is obtained by causing the missile 2 to go straight from the current position Pc0 (= Pm0) of the player character 4 toward the current position Pe0 of the enemy character 6 at the estimated speed (= player character current speed Vp + missile flight speed Vm). If the enemy character 6 travels straight at the current speed Ve of the enemy character 6 during the time Tm (= L / (Vm + Vp)) required to reach the current position Pe0 It is.

  In this embodiment, a timing determination region 14 having a predetermined radius is defined with the future predicted position 12 as the center. As shown in FIG. 7, the timing determination area 14 is an area determined to satisfy the “relative positional relationship suitable for shooting down with a missile” when the nose direction line 16 of the player character 4 passes. Therefore, the reticle 8 is displayed as a circle with a predetermined radius (or an outline when viewed from the virtual camera in the determination area) indicating the outer shape of the timing determination area 14 around the position of the future predicted position 12 in the game image 30 ( (See FIG. 5).

  In the present embodiment, as described above, the shot timing display 10 is displayed when the player changes the nose direction so that the whiskey mark 32 is inserted into the reticle 8. When a missile 2 launch operation is input while the shoot timing display 10 is displayed, the missile 2 actually has a higher accuracy rate than when the whiskey mark 32 is not in the reticle 8. The movement of the missile 2 is controlled by a special control method with high accuracy of hitting. A different type of missile 2 is not automatically selected and launched, but the control method automatically applied to the missile 2 is changed from standard tracking navigation to special navigation.

  In this embodiment, since the nose direction of the player character's fighter aircraft is the same as the missile launch direction, the positional relationship between the nose direction line 16 and the shot timing determination area 14 is determined. Is different from the nose direction, the display / non-display of the shoot timing display 10 may be determined from the positional relationship between the missile launch direction line and the shoot timing determination area 14.

  FIG. 8 is a conceptual diagram for explaining a missile control method by special navigation in the present embodiment. The special navigation in this embodiment is a navigation similar to so-called “proportional navigation”, and can also be called a future position prediction type tracking control method. Specifically, the missile 2 is controlled to move for each control cycle corresponding to the drawing cycle of the display 1222. At this time, the missile 2 moves toward an estimated predicted position coordinate that is estimated to be present at the time of the next control cycle when it is assumed that the enemy character 6 travels straight while maintaining the current speed Ve. The direction is corrected.

In the example of the figure, when the missile 2 is launched (t = 0), the estimation is obtained on the assumption that the enemy character 6 travels straight to the next control timing time (t = 1) at the current speed Ve. Fired toward the predicted position coordinates Pe1.
In the control of the missile 2 at the position Pm1 at the next control timing (t = 1) after a lapse of time after the launch, the time of the next control timing at the speed from the current position Pe1 ′ of the enemy character 6 at the same point. Estimated predicted position coordinates Pe2 assumed to have moved to (t = 2) are obtained. Then, the movement direction of the missile 2 is corrected toward the estimated predicted position coordinate Pe2. Hereinafter, the estimated predicted position coordinates of the enemy character 6 to be tracked are always calculated until the missile 2 hits the enemy character 6 or until a predetermined time elapses after the launch, and the movement direction so as to go to the estimated predicted position coordinates. Corrections are made. Of course, when the movement control is actually performed, the steering is performed only at the steering angle within the steering limit angle θm regardless of the switching of the missile control method.

  As a result, since the missile 2 always looks ahead of the enemy character 6, even if the trajectory of the enemy character 6 changes greatly, the required turning angles θ1 to θ3 are smaller than in the case of the standard tracking navigation. Therefore, it is possible to suppress a situation in which the required turning angle θ exceeds the turning limit angle θm and the turning amount is insufficient and does not hit the enemy character, and the hit rate can be increased.

  As described above, in the present embodiment, the player moves to the destination of the enemy character 6 as the attack target with reference to the reticle 8 in a sense that the target goes ahead in consideration of the relative position and moving direction with respect to the target. When the nose of the player character 4 is pointed and the missile 2 is fired, it means that the missile 2 is shot with a “relative positional relationship suitable for shooting with the missile”, and the enemy character 6 is likely to hit the enemy character 6 with high probability. it can.

[Description of functional block]
FIG. 9 is a functional block diagram illustrating an example of a functional configuration of the consumer game device 1200 according to the present embodiment. As shown in the figure, the present embodiment includes an operation input unit 100, a processing unit 200, a sound output unit 350, an image display unit 360, a communication unit 370, and a storage unit 500.

  The operation input unit 100 is realized by input devices and sensors such as a push button, a lever, a touch pad, a dial, a keyboard, a mouse, various pointers, an acceleration sensor, and a tilt sensor, and is used for various operation inputs made by a player. In response, an operation input signal is output to the processing unit 200. The game controller 1230 in FIG. 1 corresponds to the operation input unit 100.

  The processing unit 200 is realized by electronic components such as a microprocessor, an ASIC (application specific integrated circuit), and an IC memory, for example. The processing unit 200 inputs and outputs data to and from each functional unit, and inputs a predetermined program, data, and operation input. Various arithmetic processes are executed based on the operation input signal from the unit 100 to control the operation of the consumer game device 1200. In FIG. 1, the control unit 1210 built in the game apparatus main body 1201 corresponds to the processing unit 200.

  The processing unit 200 in the present embodiment includes a game calculation unit 210, a sound generation unit 250, an image generation unit 260, and a communication control unit 270.

  The game calculation unit 210 executes processing related to the progress of the game. For example, processing for forming a game space in a three-dimensional virtual space, placement control processing for objects such as characters placed in the game space, automatic control processing for NPCs (non-player characters) such as enemy characters, hit determination processing , Physics calculation processing, game result determination processing, and the like are included in the execution targets.

  More specifically, the game calculation unit 210 of the present embodiment includes an attack target selection control unit 212, a launch operation input auxiliary unit 214, an estimated predicted position determination unit 216, and a missile control unit 218.

  The attack target selection control unit 212 executes processing related to selection / registration of the attack target of the player character 4. Specifically, the enemy character 6 that exists within a predetermined search range in front of the player character 4 and that is within the shooting range of the virtual camera is extracted, and the extracted shadows 52a, 52b, and 52c of the enemy character 6 are extracted. The position coordinate in the image coordinate system of the game space image is calculated, and the container display 56 is synthesized and displayed on the game space image 30 at the calculated position coordinate in the image generation unit 260. Each time a predetermined push button 1232 is input, the attack target character is switched and selected from the extracted enemy characters 6, and the character identification information of the selected character is used as the attack target identification information 522 in the storage unit 500. As a temporary store. Further, when the enemy character selected as the attack target is present in the range of the missile 2 for a predetermined time or longer, “1” is stored in the lock-on flag 526 and a flag is set.

  The firing operation input auxiliary unit 214 executes processing related to the display of the shoot timing display 10. Specifically, the future predicted position 12 of the enemy character 6 is calculated from the current position coordinates and current speed of the enemy character 6 selected as the attack target, and the timing radius area 14 is set. Then, the image generation unit 260 displays the reticle 8 based on the timing radius region 14 on the game space image 30 in a synthesized manner. Further, it is determined whether or not the nose direction line 16 of the player character 4 passes through the timing deformation region 14. Then, if it is determined that it passes, the flag of the shoot timing flag 520 is set, and the image generation unit 260 is caused to synthesize and display the shoot timing display 10 on the game space image 30.

  When the movement of the missile is controlled based on a special navigation, the estimated predicted position determination unit 216 estimates the estimated predicted position of the enemy character 6 that is the tracking target of the missile.

  The missile control unit 218 executes processing related to missile management. Specifically, when the identification information of any enemy character is stored in the attack target identification information 522 and the lock-on flag 526 is set, an operation input of a predetermined missile launch operation from the operation input unit 100 is performed. Is detected, the missile 2 object is newly placed in the three-dimensional virtual space, and the new missile is registered in the missile management information 518. Then, the validity / invalidity of the missile 2 registered in the missile management information 518 is determined, and the movement of the missile 2 determined to be effective is controlled. Further, at the time of the missile launch operation input time, any one of a plurality of tracking control methods having different hit accuracy based on at least the relative position and orientation of the enemy character selected as the tracking target and the player character 4. Select the tracking control method and set it as the missile control method (navigation) after launch. And the process which carries out the movement control of the missile once launched by the set control method is performed.

  The sound generation unit 250 is realized by a known technique such as a processor such as a digital signal processor (DSP) and its control program, and based on the processing result by the game calculation unit 210, the sound generation unit 250 generates sound effects, BGM, and various operation sounds related to the game. A sound signal is generated and output to the sound output unit 350.

  The sound output unit 350 is realized by a device that outputs sound effects, BGM, and the like based on the sound signal input from the sound generation unit 250. In FIG. 1, the speaker 1224 of the video monitor 1220 corresponds to this.

  The image generation unit 260 is realized by a known technique such as a processor such as a digital signal processor (DSP), a control program thereof, a drawing frame IC memory such as a frame buffer, and the like. Then, the image generation unit 260 generates one game image 30 in one frame time (1/60 second) based on the processing result by the game calculation unit 210 and generates a radar image W3. The display (see FIG. 2), the radar image W3, the reticle 8, etc. are synthesized and displayed to generate the final game screen W2, and the image signal of the game image is output to the image display unit 360.

  The image display unit 360 displays various game images W2 based on the image signal input from the image generation unit 260. For example, it can be realized by an image display device such as a flat panel display, a cathode ray tube (CRT), a projector, or a head mounted display. In FIG. 1, a display 1222 that is an image display unit of the video monitor 1220 corresponds.

  The communication control unit 270 executes data processing related to data communication, and realizes data exchange with other home game devices via the communication unit 370.

  The communication unit 370 connects to the communication line 2 to realize communication. For example, it is realized by a wireless communication device, a modem, a TA (terminal adapter), a cable communication cable jack, a control circuit, and the like, and the communication device 1212 corresponds to this in FIG.

  The storage unit 500 stores pre-defined programs and data, and is also used as a work area of the processing unit 200 to store calculation results executed by the processing unit 200 according to various programs, input data input from the operation unit 100, and the like. Memorize temporarily. This function is realized by, for example, an IC memory such as a RAM and a ROM, a magnetic disk such as a hard disk, and an optical disk such as a CD-ROM and DVD.

  The storage unit 500 in this embodiment includes a system program 501 for realizing various functions for causing the processing unit 200 to control the game apparatus 1200 in an integrated manner, a game program 502 and various data necessary for causing the game to be executed. Memorize etc. When the processing unit 200 reads out and executes the game program 502, the processing unit 200 can realize the function as the game calculation unit 210.

  The game program 502 includes an NPC control program 504 for automatically controlling enemy characters (NPC: non-player characters). The NPC control program 504 can be realized using a known technique called “AI”. The game program 502 includes a standard tracking navigation control program 506 and a special navigation control program 508 for realizing the movement control of the missile 2. The former is a program for realizing the movement control of the missile by the standard tracking navigation corresponding to the navigation in the standard state explained in FIG. 3, and the latter is the program for realizing the movement control by the special navigation explained in FIG. It is a program.

The storage unit 500 also stores game space setting data 510, weapon initial setting data 512, and enemy character setting data 514 as data prepared in advance.
Further, character status data 516 and missile management information 518 are stored as data that is generated as the game progresses and rewritten as needed, and information necessary for execution of processing related to the progress of the game includes, for example, a shoot timing flag. 520, attack target identification information 522, attack target future predicted position coordinates 524, lock-on flag 526, data such as angle of view, line-of-sight direction and posture information for controlling the virtual camera, count data of various time limits, and the like are stored as appropriate. Is done.

  The game space setting data 510 stores various data for forming the game space in the three-dimensional virtual space. For example, model data, texture data, and motion data relating to an arrangement such as the sky, the ground surface, and a building are stored.

  The weapon initial setting data 512 stores initial setting data regarding weapons that appear in the game, such as the missile 2, the player character 4, and the enemy character 6, for each type of weapon. Specifically, initial values of the capability parameter values of the weapon, such as a weapon display model, texture, maximum speed and maximum acceleration, durability (hit points), types of weapons and the number of weapons are stored.

  The enemy character setting data 514 stores data defining the enemy character 6. For example, the weapon type, the initial arrangement position, and the like are stored in association with the identification information of the enemy character 6.

  The character status data 516 stores various parameter values indicating the current positions and states of player characters and enemy characters arranged in the game space. For example, as shown in FIG. 10, corresponding to the character identification information 516a, it corresponds to the current position coordinates 516b, the current aircraft attitude angle 516c, the current speed 516d, the maximum speed and the remaining number of bullets, and the current hit point. Information such as a capability parameter value 516e such as an endurance value is stored. The durability value of the ability parameter value 516e is subtracted every time an attack is received, and when it becomes “0”, it indicates that it has been shot down. Of course, it is not limited to these parameters, and information relating to each character can be stored in association with each other as appropriate.

  The missile management information 518 stores information related to missiles in flight. For example, as shown in FIG. 11, a navigation type 518b that stores information indicating the type of navigation applied to the movement control of the missile in association with the missile identification information 518a, a current position coordinate 518c, and attitude information 518d. In addition, the current speed 518e, the launch time 518f for storing the system time at the time of launch, and the tracking target identification information 518g for storing the identification information of the enemy character locked on by the missile are stored.

  While the missile control unit 218 detects that a missile launch operation has been input and additionally registers a new missile, the current system time has passed a predetermined time (for example, 15 seconds) from the launch time 518f. If the missile propellant is exhausted, the registration is canceled and the missile expires. Also, when it is determined that the missile has hit the enemy character, the registration of the missile is deleted.

The attack target identification information 522 stores character identification information of an enemy character selected by the player from enemy characters existing in a predetermined range in front of the player character 4.
In the attack target future predicted position coordinates 524, the coordinate value of the future predicted position 12 of the enemy character selected as the attack target is stored.

[Description of process flow]
Next, the flow of processing in this embodiment will be described. The process described here is realized by the processing unit 200 executing the game program 502, and is repeatedly executed until a predetermined game end condition is satisfied. In addition, since a well-known technique can be applied suitably about automatic control of enemy characters, detailed description here is abbreviate | omitted.

  FIG. 12 is a flowchart for explaining the main processing flow relating to the game progress in the present embodiment. As shown in the figure, first, the game calculation unit 210 refers to the game space setting data 510, the weapon initial setting data 512, and the enemy character setting data 514 to form a game space in the three-dimensional virtual space, and the player character The enemy character is placed at a predetermined initial position (step S2).

  If a predetermined game start operation is input, the game is started (YES in step S4), and the NPC control program 504 is executed to control each enemy character to search and attack the player character (step S6). ). Various parameters such as current position coordinates, posture angles, and speeds that have changed along with the motion control are stored in the character status data 516.

  Next, if it is detected that a maneuvering operation such as acceleration, deceleration, or steering of the player character is input from the operation input unit 100 (YES in step S8), the game calculation unit 210 moves the player character to the posture of the body and the moving direction. The movement is controlled by changing the speed (step S10). The current position coordinates, posture, and speed values of the player character that have changed accordingly are stored in the character status data 516.

Further, if it is detected that an attack target selection operation has been input from the operation input unit 100 (YES in step S12), the game calculation unit 210 sets the attack target of the enemy character as in the known combat fly simulation game. Processing is performed (step S14).
Specifically, for example, the game calculation unit 210 extracts an enemy character existing in the enemy search range of the player character 4 and is an identifier for causing the image shadow of the enemy character extracted by the image generation unit 260 to be noted. Container displays 56 and 67 (see FIG. 3) are attached. Then, the game calculation unit 210 switches and selects any one of the extracted enemy characters as an attack target according to the operation of the player, and stores the identification information of the selected enemy character in the attack target identification information 522. Further, the time during which the same character identification information is stored in the attack target identification information 522 is counted. If the enemy character selected as the attack target exists within a predetermined attackable range for a predetermined time or more, it is determined that the enemy character is stored as a missile tracking target, that is, is “locked on” and locked. Processing to set the on flag 526 is performed. By referring to the attack target identification information 522, it is possible to know which enemy character the player character 4 has selected as the attack target. Then, by referring to the lock-on flag 526, it can be determined whether the enemy character of the attack target is a missile target.

Next, the game calculation unit 210 performs a firing operation input assist process (step S16).
FIG. 13 is a flowchart for explaining the flow of the firing operation input assist process in the present embodiment. As shown in the figure, first, with reference to the character status data 516, a relative distance L1 between the current position coordinates of the player character 4 and the current position coordinates of the enemy character to be tracked is calculated (step S50). An estimated moving distance L2 is obtained based on the distance L1 (step S52). Specifically, the relative distance L1 is divided by the sum of the speed Vp of the current player character 4 and the set speed Vm of the missile 2 to calculate the required time Tm for the missile 2 to reach the current position coordinates of the enemy character. To do. Then, the estimated moving distance L2 is obtained by multiplying the required time Tm by the current speed Ve of the enemy character (see FIG. 6).

  When the estimated movement distance L2 is calculated, the game calculation unit 210 sets the future predicted position 12 at a position separated by the estimated movement distance L2 in the movement direction (here, the nose direction) of the enemy character to be tracked. (Step S54). The coordinate value of the set future predicted position 12 is stored in the attack target future predicted position coordinates 524.

  Next, it is determined whether or not the future predicted position 12 set in step S54 is included in the shooting range of the virtual camera (step S56). If it is determined that it is not included in the shooting range (NO in step S56). ), The estimated movement distance L2 obtained in step S52 is reduced by a predetermined ratio to correct the future predicted position 12 (step S58).

  As described above, the reticle 8 is displayed in the game screen W2 based on the position of the future predicted position 12. However, by correcting the position of the future predicted position 12 obtained in step S52, the probability of being included in the shooting range of the virtual camera is increased. As a result, it has been devised to increase the chances of launching missiles to which special navigation is applied, so that even a novice player can improve the battle.

  The same can be applied to bring the reticle 8 to the center of the screen when the future predicted position 12 is in the game screen W2 but is located at the peripheral edge of the game screen W2. Specifically, instead of step S56 or after step S58, the position coordinates of the future predicted position 12 in the game image coordinate system are calculated, and the calculated position coordinates are located in the peripheral portion of the predetermined range from the outer edge of the game screen. It is determined whether or not. If the determination is affirmative, the same processing as step S58 may be performed.

  Next, the game calculation unit 210 sets a spherical timing determination area 14 around the future predicted position 12 (step S60), and the nose direction line 16 (see FIG. 7) of the player character 4 defines the timing determination area 14. It is determined whether or not it passes (step S62). If it is determined that the nose direction line passes through this timing determination area 14 (YES in step S62), the shooting timing flag 520 is raised (step S64), and the firing operation input assist process is terminated.

  When the launch operation input assist process is completed, the process returns to the flow of FIG. 12, and the game calculation unit 210 next executes a missile management process (step S18).

  FIG. 14 is a flowchart for explaining the flow of missile management processing in the present embodiment. As shown in the figure, in the missile management process, first, the game calculation unit 210 determines whether or not a predetermined missile launch operation has been input from the operation input unit 100 (step S100). In this embodiment, when a predetermined push button 1232 is pressed, it is determined that there has been an input of a missile launch operation.

  If it is determined that there has been an input of a launch operation (YES in step S100), a new missile is newly placed in the game space and registered in the missile management information 518 (step S102). Specifically, the player character 4 is placed under the wing or under the fuselage.

  Then, the game calculation unit 210 refers to the shoot timing flag 520, and if the flag is set (YES in step S104), applies special navigation control to the newly placed missile navigation type 518b of the missile management information 518. Information indicating this is stored (step S106). On the other hand, if the flag is not set (NO in step S104), information indicating that standard navigation control is applied to the navigation type 518b is stored (step S108). In the example of FIG. 11, “missile 2” corresponds to the former example, and “missile 1” corresponds to the latter example.

  Next, the game calculation unit 210 stores the current system time in the newly placed missile launch time 518f of the missile management information 518, and the character identification information stored in the attack target identification information 522 in the tracking target identification information 518g. Store (step S110).

  Next, the game calculation unit 210 performs a missile deletion process after a predetermined time has elapsed from the launch time 518f (step S112). Specifically, referring to the launch time 518f of the missile management information 518, whether or not the current system time has passed a predetermined time (for example, 15 seconds) from each launch time 518f for each registered missile. Determine and delete the registration of the missile that has passed, and delete the object of the missile from the game space.

  Next, the game calculation unit 210 refers to the missile management information 518 and extracts missiles currently in flight (step S114), and executes the process of loop A for each of the extracted missiles (steps S116 to S130).

In the process of loop A, the game calculation unit 210 first refers to the navigation type 518b of the missile to be processed, and determines whether or not the set navigation type is set to special navigation, in this embodiment, special navigation. (Step S118). When the special navigation is applied (YES in Step S118), the game calculation unit 210 obtains an estimated predicted position of the enemy character corresponding to the character identification information stored in the tracking target identification information 518g (Step S120).
Specifically, the current position coordinates 516b and the current speed 516d of the enemy character set in the tracking target identification information 518g are referred to from the character status data 516, and when it is assumed that the vehicle travels straight at the same speed, a predetermined time later. A position where the arrival is predicted is calculated, and this is set as an estimated predicted position.

  In this embodiment, the predetermined time is a time corresponding to the drawing cycle of the display 1222 (for example, 1/60 seconds). However, the predetermined time may be set to be variable. For example, according to the relative distance L3 between the current position coordinates 518c of the processing target missile and the current position coordinates 516b of the enemy character set in the tracking target identification information 518g, “(1/60 seconds) × k · L3 (however, 1> k> 0) ”, and the longer the relative distance L3, the longer the predetermined time may be.

  When the estimated predicted position of the enemy character to be tracked is obtained, the game calculation unit 210 next sets the estimated predicted position as a new movement target position so as to go to the obtained estimated predicted position, and performs processing. Is changed (step S122), the movement control of the missile is executed (step S124), and the loop A is terminated.

  In step S118, when the navigation type 518b of the processing target missile is set to “standard tracking” (NO in step S118), the current position of the enemy character to be locked on is newly moved to the processing target missile. The target position is set, the posture / movement direction is changed so as to be directed to the movement target position (step S126), the movement control of the missile is executed (step S128), and the loop A is terminated.

  As described above, at least the relative position and orientation of the player character 4 and the enemy character to be tracked at the time of launching the missile flying without being hit by the enemy character after the launch by the processing of the loop A. The movement can be controlled by the tracking control method selected based on the above.

  If the loop A process is executed for all the missiles extracted in step S114, the missile management process is terminated and the flow returns to the flow of FIG. 12. Next, the game calculation unit 210 sends the player character to the image generation unit 60. The game space image 30 viewed from the virtual camera whose movement is controlled so as to accompany is generated (step S20), and the generated game space image 30 is combined with the HUD display, the radar image W3, and the container displays 56 and 57 ( Step S22).

  Further, referring to the attack target identification information 522 and the predicted future position coordinates 525, the reticle 8 is synthesized based on the predicted future position 12 of the enemy character set as the attack target (step S24). More specifically, the game calculation unit 210 calculates a position coordinate of the future predicted position 12 in the game space image coordinate system, and has a predetermined size (here, a timing determination) centered on the position coordinate calculated by the image generation unit 260. A circle having a size when the area 14 is projected onto the game space image coordinate system is drawn as the reticle 8.

  In this embodiment, since the size of the timing determination area 14 is constant, the reticle 8 is displayed smaller as the distance from the position coordinate of the future predicted position 12 in the game space image coordinate system to the current position of the player character 4 is longer. Will be. This is because it corresponds to displaying the outline of the timing determination area 14. In this case, the display size of the reticle 8 becomes smaller as the enemy character that is locked on is located farther away, and the player feels that he / she is aiming. Thus, it is difficult for a beginner player to get a chance to launch a missile controlled by a special navigation method. On the other hand, however, for advanced players, in order to increase the accuracy of missile 2, the enemy character 6 can shoot the missile 2 from the closest distance as far as possible, except in the conventional combat flight simulation game. The advantage of being able to enjoy the air battle in the way of fighting is obtained.

  Therefore, the size of the timing determination area 14 may be variable without being constant. For example, when the distance from the position coordinate of the future predicted position 12 in the game space image coordinate system to the current position of the player character 4 is longer, the size of the timing determination region 14 is increased, and the distance to the future predicted position 12 is longer. Even so, the reticle 8 may not be displayed too small. Further, the size of the timing determination area 14 may be varied by back calculation so that the size of the displayed reticle 8 itself is constant.

  Next, the game calculation unit 210 refers to the shoot timing flag 520, and when the flag is set (YES in step S26), causes the image generation unit 260 to synthesize the shoot timing display 10 with the game space image 30 ( Step S28). If the flag is not set (NO in step S26), the shot timing display 10 is stopped (step S30).

  Since the game image W2 is completed by the processing from steps S20 to S30, the image generation unit 260 causes the image display unit 360 to display and output the game image W2 (step S32).

  Subsequently, the game calculation unit 210 performs a determination of the game result and an effect process associated with the determined game result (step S34). For example, processing such as missile hit determination processing, subtraction processing of the durability value of the character hit by the missile, and display processing of a state where the character whose subtraction durability value is “0” is shot down is executed.

  Then, the game calculation unit 210 determines whether or not the determined game result satisfies a predetermined game end condition (step S36). In the present embodiment, it is determined that each game end condition for game over is satisfied when the player character is shot down, and when all of the enemy characters are shot down, game clear conditions are satisfied.

  If it is determined that the game end condition is not satisfied (NO in step S36), the process returns to step S6. Conversely, if it is determined that the game end condition is satisfied (YES in step S36), a game end process such as displaying an ending screen corresponding to each end mode is executed (step S38), and the series of processes is ended. .

  Through the series of processes described above, as shown in FIGS. 4 and 5, the reticle 8 can be displayed at the predicted future position of the enemy character 52b as the attack target selected by the player. When a maneuvering operation is performed so that the nose of the player character 4 faces the direction of the reticle 8 and a missile launch operation is input, a missile whose movement is controlled by a special navigation with a higher hit rate than the standard is launched. This missile is controlled with a higher accuracy than the standard missile. Therefore, even a beginner player can more reliably shoot down an enemy character as if he / she attacked by prefetching the destination of the target with reference to the display of the reticle 8.

[Hardware configuration]
Next, a hardware configuration example according to this embodiment will be described.
FIG. 15 is a diagram illustrating a hardware configuration example for realizing the consumer game device 1200 according to the present embodiment. In the home game apparatus 1200, a CPU 1000, a ROM 1002, a RAM 1004, an information storage medium 1006, an image generation IC 1008, a sound generation IC 1010, and I / O ports 1012 and 1014 are connected to each other via a system bus 1016 so as to be able to input and output data. A control device 1022 is connected to the I / O port 1012, and a communication device 1024 is connected to the I / O port 1014.

  The CPU 1000 controls the entire apparatus and performs various data processing according to a program stored in the information storage medium 1006, a system program stored in the ROM 1002, a signal input by the control device 1022, and the like.

  The RAM 1004 is a storage unit used as a work area of the CPU 1000, and stores given contents in the information storage medium 1006 and the ROM 1002, the calculation result of the CPU 1000, and the like.

  An information storage medium 1006 mainly stores programs, image data, sound data, play data, and the like, and as an information storage medium, an IC memory, a hard disk, a CD-ROM, a DVD, an IC card, a magnetic disk, an optical disk, and the like. Etc. are used.

  The ROM 1002, the RAM 1004, and the information storage medium 1006 correspond to the storage unit 500 in FIG.

  In addition, the image generation IC 1008 and the sound generation IC 1010 provided in this apparatus can appropriately output sound and images.

  The image generation IC 1008 is an integrated circuit that generates pixel information based on information sent from the ROM 1002, the RAM 1004, the information storage medium 1006, and the like according to instructions from the CPU 1000, and the generated image signal is output to the display device 1018. . The display device 1018 is realized by a CRT, LCD, ELD, plasma display, projector, or the like, and corresponds to the image display unit 360 in FIG.

  The sound generation IC 1010 is an integrated circuit that generates sound signals in accordance with information stored in the information storage medium 1006 and the ROM 1002 and sound data stored in the RAM 1004 according to instructions from the CPU 1000. Output from the speaker 1020. The speaker 1020 corresponds to the sound output unit 350 in FIG.

  The control device 1022 is a device for the player to input an operation related to the game, and its function is realized by hardware such as a lever, a button, a touch panel, a dial, and a pointing device. The control device 1022 corresponds to the operation input unit 100 in FIG.

  The communication device 1024 exchanges information used inside the device with the outside, and is used for transmitting / receiving given information to / from other devices. The communication device 1024 corresponds to the communication unit 370 in FIG.

  The above-described processing such as game processing is realized by an information storage medium 1006 storing the game program 502 and the like of FIG. 9, and a CPU 1000, an image generation IC 1008, a sound generation IC 1010 and the like that operate according to these programs. The CPU 1000, the image generation IC 1008, and the sound generation IC 1010 correspond to the processing unit 200 in FIG. 9, and the CPU 1000 mainly generates the game calculation unit 210, the image generation IC 1008 the image generation unit 260, and the sound generation IC 1010 generates the sound. It corresponds to each part 250.

  Note that the processing performed by the image generation IC 1008, the sound generation IC 1010, and the like may be performed by software using the CPU 1000 or a general-purpose DSP. In this case, the CPU 1000 corresponds to the processing unit 200 in FIG.

As described above, according to the present embodiment, a plurality of players can use the home-use game devices 1200 to 1200C, respectively, and a plurality of players can execute an online game in which an air battle is simultaneously performed on the same battlefield.
Then, when there is a support request from another player during the game, a special radar display mark displays the friendly character requested for support in the radar image W3 and the enemy character that was set as the attack target in the support request. can do. Therefore, in a battle-type online game in which a plurality of teammate players participate, the player can quickly respond to a support request from a teammate.

[Modification]
As mentioned above, although embodiment which applied this invention was described, the application form of this invention is not limited to this.

  For example, although the configuration using the home game device 1200 has been described as an example, an arcade game device, a personal computer, a portable game device, or the like may be used instead.

  In the above embodiment, special navigation similar to proportional navigation is used as special navigation control for missiles. However, even other navigations may provide higher accuracy than standard navigation. Can be appropriately selected.

  Further, although the reticle 8 is always displayed, it is needless to say that the reticle 8 may be hidden. It is more preferable that display / non-display can be switched by a predetermined operation input during the game.

  Further, in the above-described embodiment, whether or not to apply special navigation as the navigation type to be applied to the missile to be fired is determined in the timing determination area 14 by the nose direction line 16 (more specifically, missile) of the player character 4. It was decided to make a determination based on whether or not (the launch direction) passed. This may be as follows. That is, after calculating the future predicted position 12, a reticle having a predetermined radius is displayed around the position corresponding to the future predicted position 12 in the game space image 30. When the whiskey mark 32 is positioned within the displayed reticle, the shoot timing flag is raised to display the shoot timing display 10, and when a launch operation is performed at this time, a special navigation is applied to the missile to be launched. Apply and move control.

  According to this control, it is possible to determine whether or not to apply the special navigation with a simpler calculation. Further, when this control is performed, the radius of the displayed reticle may be set as follows. In other words, for example, the radius is reduced as the distance from the position coordinate of the calculated future predicted position 12 in the game space image coordinate system to the current position of the player character 4 increases.

  In the above embodiment, the navigation control method of the missile is switched. However, the parameters set in the missile may be switched and changed together with the switching of the navigation control method. Specifically, parameters such as missile attack power, moving speed, and turning limit angle may be changed. Of course, only one of these parameters may be changed. For example, in the case of special navigation, the turning limit angle θm may be changed to 1.2 times to further increase the accuracy of hitting an enemy character.

The block diagram which shows the structural example of a household game device. The figure which shows the example of a game screen. The conceptual diagram explaining the movement control of the missile by standard tracking navigation. The figure which shows the example of a game screen as which the reticle was displayed. The figure which shows the example of a game screen by which the shoot timing display was carried out. The conceptual diagram for demonstrating the display method of a reticle. The conceptual diagram which shows the relative positional relationship and direction relationship of a player character and enemy character in the state by which a shot timing is displayed. The conceptual diagram explaining the movement control of the missile by special navigation. The functional block diagram which shows an example of a function structure of a consumer game device. The data block diagram which shows the structural example of character status data. The data block diagram which shows the structural example of missile management information. The flowchart for demonstrating the flow of the main processing which concerns on game progress. The flowchart for demonstrating the flow of firing operation input assistance processing. The flowchart for demonstrating the flow of a missile management process. The figure which shows the hardware structural example for implement | achieving a consumer game device.

Explanation of symbols

2 Missile 4 Player character 6 Enemy character 8 Reticle 10 Shoot timing display 12 Future predicted position 14 Shoot timing determination area 16 Nose direction line 100 Operation input unit 200 Processing unit 210 Game calculation unit 212 Attack target selection control unit 214 Launch operation input assist Unit 216 estimated predicted position determination unit 218 missile control unit 260 image generation unit 270 communication control unit 500 storage unit 502 game program 506 standard tracking navigation control program 508 special navigation control program 516 character status data 518 missile management information 522 attack target identification information 524 Attack target future predicted position coordinates W2 Game image W3 Radar image

Claims (10)

A program for causing a computer to execute a predetermined game by controlling movement of a character in a virtual space and generating an image of the game space based on a given virtual camera,
Player character movement control means for performing movement control of a player character capable of launching a flying object that tracks and flies according to the player's operation input;
Tracking target character movement control means for performing movement control of the tracking target character;
Tracking control method selection means for selecting a tracking control method from a plurality of tracking control methods based on at least the relative position and orientation of the current player character and the tracking target character;
Detecting means for detecting a player's firing operation input;
A flight control means for launching the flying object in response to the detection and controlling the flying of the flying object by the tracking control method selected by the tracking control method selection means at the time of the detection;
A program for causing the computer to function as The program according to claim 1,
The plurality of tracking control methods include at least a future position prediction type tracking control method,
When the flight control unit selects the future position prediction type tracking control method by the tracking control method selection unit, the flight control unit predicts and calculates the future position of the tracking target character after a predetermined time, and uses the future position as the flying object. A program for causing the computer to function so as to control the flight of the flying object by repeatedly performing the process of moving the flying object as the movement target position. The program according to claim 2,
The tracking control method selecting means is
A determination reference future position prediction calculating means for predicting and calculating a determination reference future position which is a future position after a predetermined determination reference time of the tracking target character;
Direction adaptation detection means for detecting that the predicted calculation future reference position is in a position that satisfies a predetermined proximity condition with respect to the direction of the player character or the extension direction of the flying direction of the flying object;
And selecting the future position prediction type tracking control method when the detection by the direction adaptation detection means is performed.
Program for causing the computer to function. The program according to claim 3,
A program for causing the computer to function so that the determination reference future position prediction calculation means varies the predetermined determination reference time according to the distance between the player character and the tracking target character. The program according to claim 3 or 4,
When the predicted calculation reference future position is outside the shooting range of the virtual camera, it is corrected within the shooting range, or when it is positioned at the periphery of the shooting range, the center position is corrected. Program for causing the computer to function. It is a program as described in any one of Claims 3-5,
A program for causing the computer to function as notification control means for notifying that a detection has been made by a predetermined notification method when detection by the direction adaptation detection means is performed. It is a program as described in any one of Claims 3-6,
A program for causing the computer to function as determination range display control means for displaying a range satisfying the predetermined proximity condition centered on the determination reference future position in an image of the game space. A program according to any one of claims 2 to 7,
The plurality of tracking control methods include at least a current position reference tracking control method,
When the flight control unit selects the current position reference tracking control method by the tracking control method selection unit, the flight control unit repeatedly performs the process of moving the flying object using the tracking target character current position as the movement target position of the flying object. A program for causing the computer to function so as to control the flying of the flying object.   The computer-readable information storage medium which memorize | stored the program as described in any one of Claims 1-8. A game device for executing a predetermined game by performing movement control in a virtual space of a character and generating an image of the game space based on a given virtual camera,
Player character movement control means for performing movement control of a player character capable of launching a flying object that tracks and flies according to the player's operation input;
Tracking target character movement control means for performing movement control of the tracking target character;
Tracking control method selection means for selecting a tracking control method from a plurality of tracking control methods based on at least the relative position and orientation of the current player character and the tracking target character;
Detecting means for detecting a player's firing operation input;
Flying control means for firing the flying object in response to the detection, and controlling the flying of the flying object by the tracking control method selected by the tracking control method selecting means at the time of the detection;
A game device comprising:

Images